package com.bp.framework.util;

import com.bp.common.constant.HttpStatus;
import com.bp.common.exception.CustomException;
import com.bp.system.domain.LoginUser;
import com.bp.system.domain.SysRole;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * @author shaominjie
 * @Description 安全服务工具类
 */
public class SecurityUtils {
    /**
     * 获取用户账户
     **/
    public static String getUsername() {
        try {
            return getLoginUser().getUser().getUserName();
        }
        catch (Exception e) {
            throw new CustomException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }
    /**
     * 获取用户名称
     **/
    public static String getNickName() {
        try {
            return getLoginUser().getUser().getUserName();
        }
        catch (Exception e) {
            throw new CustomException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }
    public static Set<String> roleKeys(){
        try {
            return getLoginUser().getUser().getRoles().stream().map(SysRole::getRoleKey).collect(Collectors.toSet());
        }
        catch (Exception e) {
            throw new CustomException("获取用户角色异常", HttpStatus.UNAUTHORIZED);
        }
    }
    /**
     * 获取用户账户
     **/
    public static Long getUserId() {
        try {
            return getLoginUser().getUser().getUserId();
        }
        catch (Exception e) {
            throw new CustomException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }
    /**
     * 获取用户
     **/
    public static LoginUser getLoginUser() {
        try {
            return (LoginUser) getAuthentication().getPrincipal();
        }
        catch (Exception e) {
            throw new CustomException("获取用户信息异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword 真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }

    /**
     * 是否为管理员
     *
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(Long userId) {
        return userId != null && 1L == userId;
    }
}
